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Dear Members I hope you are all doing well. I am busy teaching myself iptables and was wondering if I may get some advise. The scenario is the following: 1. Default policy is to block all traffic 2. Allow web traffic and SSH 3. Allow other applications I have come up with the following: #!/bin/bash # RESET CURRENT RULE BASE iptables -F service iptables save # DEFAULT FIREWALL

Dear Community I hope you are all doing well. Recently I have been receiving several complaints from our service provider. Please see the complaint below: A public-facing device on your network, running on IP address XXX.XXX.XXX.XXX, operates a RPC port mapping service responding on UDP port 111 and participated in a large-scale attack against a customer of ours, generating responses to

Dear Community I am trying to install MySQL 5.6 on a Raspberry PI 3B.?? Using my normal procedure by downloading the yum repo rpm and installing MySQL through that is not working.? There is no rpm information for arm7. Can anyone please point me in a direction where I can find a procedure on how to install MySQL 5.6 on Centos 7 running on a PI3? Kind Regards, Leon

...P or NTP using TCP. You > can't do DNS queries, and it's almost always painful for any service you're > running on your server; > 3. Seems strange that you haven't added SMTP to the list of allowed > outgoing connections. > > > > 29.06.2016, 13:01, "Leon Vergottini" <leonv at cornerstone.ac.za>: > > Dear Members > > > > I hope you are all doing well. > > > > I am busy teaching myself iptables and was wondering if I may get some > > advise. The scenario is the following: > > > > 1. Default poli...

...created outgoing rule for DNS over TCP or NTP using TCP. You can't do DNS queries, and it's almost always painful for any service you're running on your server; 3. Seems strange that you haven't added SMTP to the list of allowed outgoing connections. 29.06.2016, 13:01, "Leon Vergottini" <leonv at cornerstone.ac.za>: > ?Dear Members > > ?I hope you are all doing well. > > ?I am busy teaching myself iptables and was wondering if I may get some > ?advise. The scenario is the following: > > ????1. Default policy is to block all traffic > ????2. A...

On 06/29/2016 03:00 AM, Leon Vergottini wrote: > #!/bin/bash > > # RESET CURRENT RULE BASE > iptables -F > service iptables save Why would you save the existing rule set? This script throws it away later, when it runs save again. > # MOST COMMON ATTACKS > iptables -A INPUT -p tcp --tcp-flags ALL NONE -j DROP &g...

On Wed, 2016-06-29 at 10:49 -0700, Gordon Messmer wrote: > On 06/29/2016 03:00 AM, Leon Vergottini wrote: > > #!/bin/bash > > > > # RESET CURRENT RULE BASE > > iptables -F > > service iptables save > Why would you save the existing rule set? This script throws it away > later, when it runs save again. He flushes all the tables, then saves an empty iptable...

On 06/03/2017 08:19 AM, Leon Vergottini wrote: > Dear Community > > > > I am trying to install MySQL 5.6 on a Raspberry PI 3B. Using my normal procedure by downloading the yum repo rpm and installing MySQL through that is not working. There is no rpm information for arm7. > > > > Can anyone please po...

On 29.06.2016 12:00, Leon Vergottini wrote: > Dear Members > > I hope you are all doing well. > > I am busy teaching myself iptables and was wondering if I may get some > advise. The scenario is the following: > > > 1. Default policy is to block all traffic > 2. Allow web traffic and SSH >...

Dear Community I have been receiving the below each time when I log into one of my servers using ssh. declare -x G_BROKEN_FILENAMES="1" declare -x HISTCONTROL="ignoredups" declare -x HISTSIZE="1000" declare -x HOME="/home/xxxx" declare -x HOSTNAME="CentOS-66-64-minimal" declare -x LANG="en_US.UTF-8" declare -x